Plot
Inventor Goro Ibuki creates a humanoid robot named Jet Jaguar. It is soon seized by an undersea race of people called the Seatopians. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.
Cast
Кацухико Сасаки
Inventor Goro Ibuki
林ゆたか
Hiroshi Jinkawa
Hiroyuki Kawase
Rokuro 'Roku-chan' Ibuki
森幹太
Japan Special Defense Forces Chief
富田浩太郎
Lead Seatopian Agent
大月ウルフ
Seatopian Agent
三上左京
Truck Driver's Assistant
Fumiyo Ikeda
Man from Unit 1
Robert Dunham
Emperor Antonio of Seatopia
Gentaro Nakajima
Truck Driver
Ralph Jesser
Antonio's Aide (Radio Operator in White)
Shinji Takagi
Godzilla